18 Linux Commands every programmer should know
A Thread🧵
A Thread🧵
🔹pwd
Used to find out the path of the current working directory (folder) you’re in.
The command will return an absolute (full) path, which is basically a path of all the directories that starts with a forward slash (/).
An example of an absolute path is /home/username.
Used to find out the path of the current working directory (folder) you’re in.
The command will return an absolute (full) path, which is basically a path of all the directories that starts with a forward slash (/).
An example of an absolute path is /home/username.
🔹cd
Used to change your current directory
for example:- cd workspace
There are some shortcuts to help you navigate quickly:
-> cd .. to move one directory up
-> cd to go straight to the home folder
-> cd- to move to your previous directory
Used to change your current directory
for example:- cd workspace
There are some shortcuts to help you navigate quickly:
-> cd .. to move one directory up
-> cd to go straight to the home folder
-> cd- to move to your previous directory
🔹ls
Used to lists the files and folders in the directory you specify.
By default, this command will display the contents of your current working directory.
Used to lists the files and folders in the directory you specify.
By default, this command will display the contents of your current working directory.
🔹cat
Used to list the contents of a file on the standard output (sdout).
To run this command, type cat followed by the file’s name and its extension. For instance: cat file.txt.
Used to list the contents of a file on the standard output (sdout).
To run this command, type cat followed by the file’s name and its extension. For instance: cat file.txt.
🔹cp
Used to copy files from the current directory to a different directory.
For instance, the command cp scenery.jpg /home/username/Pictures would create a copy of scenery.jpg (from your current directory) into the Pictures directory.
Used to copy files from the current directory to a different directory.
For instance, the command cp scenery.jpg /home/username/Pictures would create a copy of scenery.jpg (from your current directory) into the Pictures directory.
🔹mv
Used to move files, although it can also be used to rename files.
Used to move files, although it can also be used to rename files.
🔹mkdir
Used to make a new directory — if you type mkdir Music it will create a directory called Music.
Used to make a new directory — if you type mkdir Music it will create a directory called Music.
🔹rmdir
Used to delete a directory
rmdir only allows you to delete empty directories
Used to delete a directory
rmdir only allows you to delete empty directories
🔹rm
Used to delete directories and the contents within them.
If you only want to delete the directory — as an alternative to rmdir — use rm -r.
Used to delete directories and the contents within them.
If you only want to delete the directory — as an alternative to rmdir — use rm -r.
🔹touch
Used to create a blank new file through the Linux command line.
for example:-
enter touch /home/username/Documents/Web.html to create an HTML file entitled Web under the Documents directory.
Used to create a blank new file through the Linux command line.
for example:-
enter touch /home/username/Documents/Web.html to create an HTML file entitled Web under the Documents directory.
🔹sudo
Used to perform tasks that require administrative or root permissions
Used to perform tasks that require administrative or root permissions
🔹man
Used to know more about command and how to use it.
It shows the manual pages of the command
Used to know more about command and how to use it.
It shows the manual pages of the command
🔹du
Used to check how much space a file or directory takes
Used to check how much space a file or directory takes
🔹df
Used to get a report on the system's disk space usage, shown in percentage and KBs
If you want to see the report in megabytes, type df -m.
Used to get a report on the system's disk space usage, shown in percentage and KBs
If you want to see the report in megabytes, type df -m.
🔹diff
Used to compare the contents of two files line by line.
After analyzing the files, it will output the lines that do not match.
Used to compare the contents of two files line by line.
After analyzing the files, it will output the lines that do not match.
🔹ping
Used to check your connection to a server.
Used to check your connection to a server.
🔹history
Used to review the commands you've entered before.
Used to review the commands you've entered before.
🔹echo
Used to move some data into a file.
Used to move some data into a file.
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I am Vinay, a developer from India, sharing some of the knowledge I gain in my daily life as a programmer and as a Human being
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